Consider the following reaction 4 nh3 + 7 o2 à 4 no2 + 6 h2o at a certain instant the initial rate of appearance of the no2 gas is x. What is the value of the disappearance of oxygen at the same instant?.

Which of the following is not an attitude you should adopt on the road? a. arrogance b. forgiveness c. tolerance

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.

What does the first stage of a multistage rocket do?